At least one Afghan soldier has been killed and seven U.S. service personnel wounded in a so-called insider attack at an Afghan National Army base in the northern city of Mazar-e Sharif.
A U.S. military spokesman in Kabul also said that at least one Afghan soldier was wounded in the June 17 attack, in which a rogue Afghan soldier opened fire on his comrades.
An Afghan National Army spokesman said the rogue soldier was also killed in the ensuing shoot-out.
Afghan Taliban spokesman Zabihullah Mujahid issued a statement taking responsibility for the incident.
The attack occurred at Camp Shaheen, the headquarters of the Afghan Army's 209th Corps.
In April, Taliban militants launched a major attack on the base that left more than 130 Afghan personnel dead.
On June 11, three U.S. soldiers were killed and one was wounded in an insider attack at a base in Nangarhar Province in eastern Afghanistan.